lib/zclient.h

   1 /* Zebra's client header.
   2  * Copyright (C) 1999 Kunihiro Ishiguro
   3  *
   4  * This file is part of GNU Zebra.
   5  *
   6  * GNU Zebra is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2, or (at your option)
   9  * any later version.
  10  *
  11  * GNU Zebra is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; see the file COPYING; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef _ZEBRA_ZCLIENT_H
  22 #define _ZEBRA_ZCLIENT_H
  23
  24 /* For struct zapi_route. */
  25 #include "prefix.h"
  26
  27 /* For struct interface and struct connected. */
  28 #include "if.h"
  29
  30 /* For vrf_bitmap_t. */
  31 #include "vrf.h"
  32
  33 /* For union g_addr */
  34 #include "nexthop.h"
  35
  36 /* For union pw_protocol_fields */
  37 #include "pw.h"
  38
  39 /* For input/output buffer to zebra. */
  40 #define ZEBRA_MAX_PACKET_SIZ          16384
  41
  42 /* Zebra header size. */
  43 #define ZEBRA_HEADER_SIZE             10
  44
  45 /* special socket path name to use TCP
  46  * @ is used as first character because that's abstract socket names on Linux
  47  */
  48 #define ZAPI_TCP_PATHNAME             "@tcp"
  49
  50 /* IPset size name stands for the name of the ipset entry
  51  * that can be created by using some zapi interfaces
  52  */
  53 #define ZEBRA_IPSET_NAME_SIZE   32
  54
  55 /* IPTable action is defined by two values: either
  56  * forward or drop
  57  */
  58 #define ZEBRA_IPTABLES_FORWARD 0
  59 #define ZEBRA_IPTABLES_DROP    1
  60
  61 extern struct sockaddr_storage zclient_addr;
  62 extern socklen_t zclient_addr_len;
  63
  64 /* Zebra message types. */
  65 typedef enum {
  66         ZEBRA_INTERFACE_ADD,
  67         ZEBRA_INTERFACE_DELETE,
  68         ZEBRA_INTERFACE_ADDRESS_ADD,
  69         ZEBRA_INTERFACE_ADDRESS_DELETE,
  70         ZEBRA_INTERFACE_UP,
  71         ZEBRA_INTERFACE_DOWN,
  72         ZEBRA_INTERFACE_SET_MASTER,
  73         ZEBRA_ROUTE_ADD,
  74         ZEBRA_ROUTE_DELETE,
  75         ZEBRA_ROUTE_NOTIFY_OWNER,
  76         ZEBRA_REDISTRIBUTE_ADD,
  77         ZEBRA_REDISTRIBUTE_DELETE,
  78         ZEBRA_REDISTRIBUTE_DEFAULT_ADD,
  79         ZEBRA_REDISTRIBUTE_DEFAULT_DELETE,
  80         ZEBRA_ROUTER_ID_ADD,
  81         ZEBRA_ROUTER_ID_DELETE,
  82         ZEBRA_ROUTER_ID_UPDATE,
  83         ZEBRA_HELLO,
  84         ZEBRA_CAPABILITIES,
  85         ZEBRA_NEXTHOP_REGISTER,
  86         ZEBRA_NEXTHOP_UNREGISTER,
  87         ZEBRA_NEXTHOP_UPDATE,
  88         ZEBRA_INTERFACE_NBR_ADDRESS_ADD,
  89         ZEBRA_INTERFACE_NBR_ADDRESS_DELETE,
  90         ZEBRA_INTERFACE_BFD_DEST_UPDATE,
  91         ZEBRA_IMPORT_ROUTE_REGISTER,
  92         ZEBRA_IMPORT_ROUTE_UNREGISTER,
  93         ZEBRA_IMPORT_CHECK_UPDATE,
  94         ZEBRA_BFD_DEST_REGISTER,
  95         ZEBRA_BFD_DEST_DEREGISTER,
  96         ZEBRA_BFD_DEST_UPDATE,
  97         ZEBRA_BFD_DEST_REPLAY,
  98         ZEBRA_REDISTRIBUTE_ROUTE_ADD,
  99         ZEBRA_REDISTRIBUTE_ROUTE_DEL,
 100         ZEBRA_VRF_UNREGISTER,
 101         ZEBRA_VRF_ADD,
 102         ZEBRA_VRF_DELETE,
 103         ZEBRA_VRF_LABEL,
 104         ZEBRA_INTERFACE_VRF_UPDATE,
 105         ZEBRA_BFD_CLIENT_REGISTER,
 106         ZEBRA_BFD_CLIENT_DEREGISTER,
 107         ZEBRA_INTERFACE_ENABLE_RADV,
 108         ZEBRA_INTERFACE_DISABLE_RADV,
 109         ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB,
 110         ZEBRA_INTERFACE_LINK_PARAMS,
 111         ZEBRA_MPLS_LABELS_ADD,
 112         ZEBRA_MPLS_LABELS_DELETE,
 113         ZEBRA_IPMR_ROUTE_STATS,
 114         ZEBRA_LABEL_MANAGER_CONNECT,
 115         ZEBRA_LABEL_MANAGER_CONNECT_ASYNC,
 116         ZEBRA_GET_LABEL_CHUNK,
 117         ZEBRA_RELEASE_LABEL_CHUNK,
 118         ZEBRA_FEC_REGISTER,
 119         ZEBRA_FEC_UNREGISTER,
 120         ZEBRA_FEC_UPDATE,
 121         ZEBRA_ADVERTISE_DEFAULT_GW,
 122         ZEBRA_ADVERTISE_SUBNET,
 123         ZEBRA_ADVERTISE_ALL_VNI,
 124         ZEBRA_LOCAL_ES_ADD,
 125         ZEBRA_LOCAL_ES_DEL,
 126         ZEBRA_VNI_ADD,
 127         ZEBRA_VNI_DEL,
 128         ZEBRA_L3VNI_ADD,
 129         ZEBRA_L3VNI_DEL,
 130         ZEBRA_REMOTE_VTEP_ADD,
 131         ZEBRA_REMOTE_VTEP_DEL,
 132         ZEBRA_MACIP_ADD,
 133         ZEBRA_MACIP_DEL,
 134         ZEBRA_IP_PREFIX_ROUTE_ADD,
 135         ZEBRA_IP_PREFIX_ROUTE_DEL,
 136         ZEBRA_REMOTE_MACIP_ADD,
 137         ZEBRA_REMOTE_MACIP_DEL,
 138         ZEBRA_PW_ADD,
 139         ZEBRA_PW_DELETE,
 140         ZEBRA_PW_SET,
 141         ZEBRA_PW_UNSET,
 142         ZEBRA_PW_STATUS_UPDATE,
 143         ZEBRA_RULE_ADD,
 144         ZEBRA_RULE_DELETE,
 145         ZEBRA_RULE_NOTIFY_OWNER,
 146         ZEBRA_TABLE_MANAGER_CONNECT,
 147         ZEBRA_GET_TABLE_CHUNK,
 148         ZEBRA_RELEASE_TABLE_CHUNK,
 149         ZEBRA_IPSET_CREATE,
 150         ZEBRA_IPSET_DESTROY,
 151         ZEBRA_IPSET_ENTRY_ADD,
 152         ZEBRA_IPSET_ENTRY_DELETE,
 153         ZEBRA_IPSET_NOTIFY_OWNER,
 154         ZEBRA_IPSET_ENTRY_NOTIFY_OWNER,
 155         ZEBRA_IPTABLE_ADD,
 156         ZEBRA_IPTABLE_DELETE,
 157         ZEBRA_IPTABLE_NOTIFY_OWNER,
 158 } zebra_message_types_t;
 159
 160 struct redist_proto {
 161         uint8_t enabled;
 162         struct list *instances;
 163 };
 164
 165 struct zclient_capabilities {
 166         uint32_t ecmp;
 167         bool mpls_enabled;
 168 };
 169
 170 /* Structure for the zebra client. */
 171 struct zclient {
 172         /* The thread master we schedule ourselves on */
 173         struct thread_master *master;
 174
 175         /* Priviledges to change socket values */
 176         struct zebra_privs_t *privs;
 177
 178         /* Do we care about failure events for route install? */
 179         bool receive_notify;
 180
 181         /* Socket to zebra daemon. */
 182         int sock;
 183
 184         /* Connection failure count. */
 185         int fail;
 186
 187         /* Input buffer for zebra message. */
 188         struct stream *ibuf;
 189
 190         /* Output buffer for zebra message. */
 191         struct stream *obuf;
 192
 193         /* Buffer of data waiting to be written to zebra. */
 194         struct buffer *wb;
 195
 196         /* Read and connect thread. */
 197         struct thread *t_read;
 198         struct thread *t_connect;
 199
 200         /* Thread to write buffered data to zebra. */
 201         struct thread *t_write;
 202
 203         /* Redistribute information. */
 204         uint8_t redist_default; /* clients protocol */
 205         unsigned short instance;
 206         struct redist_proto mi_redist[AFI_MAX][ZEBRA_ROUTE_MAX];
 207         vrf_bitmap_t redist[AFI_MAX][ZEBRA_ROUTE_MAX];
 208
 209         /* Redistribute defauilt. */
 210         vrf_bitmap_t default_information;
 211
 212         /* Pointer to the callback functions. */
 213         void (*zebra_connected)(struct zclient *);
 214         void (*zebra_capabilities)(struct zclient_capabilities *cap);
 215         int (*router_id_update)(int, struct zclient *, uint16_t, vrf_id_t);
 216         int (*interface_add)(int, struct zclient *, uint16_t, vrf_id_t);
 217         int (*interface_delete)(int, struct zclient *, uint16_t, vrf_id_t);
 218         int (*interface_up)(int, struct zclient *, uint16_t, vrf_id_t);
 219         int (*interface_down)(int, struct zclient *, uint16_t, vrf_id_t);
 220         int (*interface_address_add)(int, struct zclient *, uint16_t, vrf_id_t);
 221         int (*interface_address_delete)(int, struct zclient *, uint16_t,
 222                                         vrf_id_t);
 223         int (*interface_link_params)(int, struct zclient *, uint16_t);
 224         int (*interface_bfd_dest_update)(int, struct zclient *, uint16_t,
 225                                          vrf_id_t);
 226         int (*interface_nbr_address_add)(int, struct zclient *, uint16_t,
 227                                          vrf_id_t);
 228         int (*interface_nbr_address_delete)(int, struct zclient *, uint16_t,
 229                                             vrf_id_t);
 230         int (*interface_vrf_update)(int, struct zclient *, uint16_t, vrf_id_t);
 231         int (*nexthop_update)(int, struct zclient *, uint16_t, vrf_id_t);
 232         int (*import_check_update)(int, struct zclient *, uint16_t, vrf_id_t);
 233         int (*bfd_dest_replay)(int, struct zclient *, uint16_t, vrf_id_t);
 234         int (*redistribute_route_add)(int, struct zclient *, uint16_t,
 235                                       vrf_id_t);
 236         int (*redistribute_route_del)(int, struct zclient *, uint16_t,
 237                                       vrf_id_t);
 238         int (*fec_update)(int, struct zclient *, uint16_t);
 239         int (*local_es_add)(int command, struct zclient *zclient,
 240                             uint16_t length, vrf_id_t vrf_id);
 241         int (*local_es_del)(int command, struct zclient *zclient,
 242                             uint16_t length, vrf_id_t vrf_id);
 243         int (*local_vni_add)(int, struct zclient *, uint16_t, vrf_id_t);
 244         int (*local_vni_del)(int, struct zclient *, uint16_t, vrf_id_t);
 245         int (*local_l3vni_add)(int, struct zclient *, uint16_t, vrf_id_t);
 246         int (*local_l3vni_del)(int, struct zclient *, uint16_t, vrf_id_t);
 247         void (*local_ip_prefix_add)(int, struct zclient *, uint16_t, vrf_id_t);
 248         void (*local_ip_prefix_del)(int, struct zclient *, uint16_t, vrf_id_t);
 249         int (*local_macip_add)(int, struct zclient *, uint16_t, vrf_id_t);
 250         int (*local_macip_del)(int, struct zclient *, uint16_t, vrf_id_t);
 251         int (*pw_status_update)(int, struct zclient *, uint16_t, vrf_id_t);
 252         int (*route_notify_owner)(int command, struct zclient *zclient,
 253                                   uint16_t length, vrf_id_t vrf_id);
 254         int (*rule_notify_owner)(int command, struct zclient *zclient,
 255                                  uint16_t length, vrf_id_t vrf_id);
 256         void (*label_chunk)(int command, struct zclient *zclient,
 257                                 uint16_t length, vrf_id_t vrf_id);
 258         int (*ipset_notify_owner)(int command, struct zclient *zclient,
 259                                  uint16_t length, vrf_id_t vrf_id);
 260         int (*ipset_entry_notify_owner)(int command,
 261                                        struct zclient *zclient,
 262                                        uint16_t length,
 263                                        vrf_id_t vrf_id);
 264         int (*iptable_notify_owner)(int command,
 265                                     struct zclient *zclient,
 266                                     uint16_t length,
 267                                     vrf_id_t vrf_id);
 268 };
 269
 270 /* Zebra API message flag. */
 271 #define ZAPI_MESSAGE_NEXTHOP  0x01
 272 #define ZAPI_MESSAGE_DISTANCE 0x02
 273 #define ZAPI_MESSAGE_METRIC   0x04
 274 #define ZAPI_MESSAGE_TAG      0x08
 275 #define ZAPI_MESSAGE_MTU      0x10
 276 #define ZAPI_MESSAGE_SRCPFX   0x20
 277 #define ZAPI_MESSAGE_LABEL    0x40
 278 /*
 279  * This should only be used by a DAEMON that needs to communicate
 280  * the table being used is not in the VRF.  You must pass the
 281  * default vrf, else this will be ignored.
 282  */
 283 #define ZAPI_MESSAGE_TABLEID  0x80
 284
 285 #define ZSERV_VERSION 6
 286 /* Zserv protocol message header */
 287 struct zmsghdr {
 288         uint16_t length;
 289         /* Always set to 255 in new zserv */
 290         uint8_t marker;
 291         uint8_t version;
 292         vrf_id_t vrf_id;
 293         uint16_t command;
 294 };
 295
 296 struct zapi_nexthop {
 297         enum nexthop_types_t type;
 298         vrf_id_t vrf_id;
 299         ifindex_t ifindex;
 300         union {
 301                 union g_addr gate;
 302                 enum blackhole_type bh_type;
 303         };
 304
 305         /* MPLS labels for BGP-LU or Segment Routing */
 306         uint8_t label_num;
 307         mpls_label_t labels[MPLS_MAX_LABELS];
 308
 309         struct ethaddr rmac;
 310 };
 311
 312 /*
 313  * Some of these data structures do not map easily to
 314  * a actual data structure size giving different compilers
 315  * and systems.  For those data structures we need
 316  * to use the smallest available stream_getX/putX functions
 317  * to encode/decode.
 318  */
 319 struct zapi_route {
 320         uint8_t type;
 321         unsigned short instance;
 322
 323         uint32_t flags;
 324
 325         uint8_t message;
 326
 327         /*
 328          * This is an enum but we are going to treat it as a uint8_t
 329          * for purpose of encoding/decoding
 330          */
 331         safi_t safi;
 332
 333         struct prefix prefix;
 334         struct prefix_ipv6 src_prefix;
 335
 336         uint16_t nexthop_num;
 337         struct zapi_nexthop nexthops[MULTIPATH_NUM];
 338
 339         uint8_t distance;
 340
 341         uint32_t metric;
 342
 343         route_tag_t tag;
 344
 345         uint32_t mtu;
 346
 347         vrf_id_t vrf_id;
 348
 349         uint32_t tableid;
 350 };
 351
 352 struct zapi_pw {
 353         char ifname[IF_NAMESIZE];
 354         ifindex_t ifindex;
 355         int type;
 356         int af;
 357         union g_addr nexthop;
 358         uint32_t local_label;
 359         uint32_t remote_label;
 360         uint8_t flags;
 361         union pw_protocol_fields data;
 362         uint8_t protocol;
 363 };
 364
 365 struct zapi_pw_status {
 366         char ifname[IF_NAMESIZE];
 367         ifindex_t ifindex;
 368         uint32_t status;
 369 };
 370
 371 enum zapi_route_notify_owner {
 372         ZAPI_ROUTE_FAIL_INSTALL,
 373         ZAPI_ROUTE_BETTER_ADMIN_WON,
 374         ZAPI_ROUTE_INSTALLED,
 375         ZAPI_ROUTE_REMOVED,
 376         ZAPI_ROUTE_REMOVE_FAIL,
 377 };
 378
 379 enum zapi_rule_notify_owner {
 380         ZAPI_RULE_FAIL_INSTALL,
 381         ZAPI_RULE_INSTALLED,
 382         ZAPI_RULE_REMOVED,
 383         ZAPI_RULE_FAIL_REMOVE,
 384 };
 385
 386 enum ipset_type {
 387         IPSET_NET_NET = 1,
 388         IPSET_NET_PORT_NET,
 389         IPSET_NET_PORT,
 390         IPSET_NET
 391 };
 392
 393 enum zapi_ipset_notify_owner {
 394         ZAPI_IPSET_FAIL_INSTALL,
 395         ZAPI_IPSET_INSTALLED,
 396         ZAPI_IPSET_REMOVED,
 397         ZAPI_IPSET_FAIL_REMOVE,
 398 };
 399
 400 enum zapi_ipset_entry_notify_owner {
 401         ZAPI_IPSET_ENTRY_FAIL_INSTALL,
 402         ZAPI_IPSET_ENTRY_INSTALLED,
 403         ZAPI_IPSET_ENTRY_REMOVED,
 404         ZAPI_IPSET_ENTRY_FAIL_REMOVE,
 405 };
 406
 407 enum zapi_iptable_notify_owner {
 408         ZAPI_IPTABLE_FAIL_INSTALL,
 409         ZAPI_IPTABLE_INSTALLED,
 410         ZAPI_IPTABLE_REMOVED,
 411         ZAPI_IPTABLE_FAIL_REMOVE,
 412 };
 413
 414 /* Zebra MAC types */
 415 #define ZEBRA_MACIP_TYPE_STICKY                0x01 /* Sticky MAC*/
 416 #define ZEBRA_MACIP_TYPE_GW                    0x02 /* gateway (SVI) mac*/
 417 #define ZEBRA_MACIP_TYPE_ROUTER_FLAG           0x04 /* Router Flag - proxy NA */
 418 #define ZEBRA_MACIP_TYPE_OVERRIDE_FLAG         0x08 /* Override Flag */
 419
 420 struct zclient_options {
 421         bool receive_notify;
 422 };
 423
 424 /* Prototypes of zebra client service functions. */
 425 extern struct zclient *zclient_new(struct thread_master *);
 426
 427 /* clang-format off */
 428 #if CONFDATE > 20181101
 429 CPP_NOTICE("zclient_new_notify can take over or zclient_new now");
 430 #endif
 431 /* clang-format on */
 432
 433 extern struct zclient_options zclient_options_default;
 434
 435 extern struct zclient *zclient_new_notify(struct thread_master *m,
 436                                           struct zclient_options *opt);
 437
 438 #define zclient_new(A)                                                         \
 439         zclient_new_notify((A), &zclient_options_default);                     \
 440         CPP_WARN("Please transition to using zclient_new_notify");
 441
 442 extern void zclient_init(struct zclient *, int, unsigned short,
 443                          struct zebra_privs_t *privs);
 444 extern int zclient_start(struct zclient *);
 445 extern void zclient_stop(struct zclient *);
 446 extern void zclient_reset(struct zclient *);
 447 extern void zclient_free(struct zclient *);
 448
 449 extern int zclient_socket_connect(struct zclient *);
 450
 451 extern unsigned short *redist_check_instance(struct redist_proto *,
 452                                              unsigned short);
 453 extern void redist_add_instance(struct redist_proto *, unsigned short);
 454 extern void redist_del_instance(struct redist_proto *, unsigned short);
 455
 456 /*
 457  * Send to zebra that the specified vrf is using label to resolve
 458  * itself for L3VPN's.  Repeated calls of this function with
 459  * different labels will cause an effective update of the
 460  * label for lookup.  If you pass in MPLS_LABEL_NONE
 461  * we will cause a delete action and remove this label pop
 462  * operation.
 463  *
 464  * The underlying AF_MPLS doesn't care about afi's
 465  * but we can make the zebra_vrf keep track of what
 466  * we have installed and play some special games
 467  * to get them both installed.
 468  */
 469 extern void zclient_send_vrf_label(struct zclient *zclient, vrf_id_t vrf_id,
 470                                    afi_t afi, mpls_label_t label,
 471                                    enum lsp_types_t ltype);
 472
 473 extern void zclient_send_reg_requests(struct zclient *, vrf_id_t);
 474 extern void zclient_send_dereg_requests(struct zclient *, vrf_id_t);
 475
 476 extern void zclient_send_interface_radv_req(struct zclient *zclient,
 477                                             vrf_id_t vrf_id,
 478                                             struct interface *ifp, int enable,
 479                                             int ra_interval);
 480
 481 /* Send redistribute command to zebra daemon. Do not update zclient state. */
 482 extern int zebra_redistribute_send(int command, struct zclient *, afi_t,
 483                                    int type, unsigned short instance,
 484                                    vrf_id_t vrf_id);
 485
 486 /* If state has changed, update state and call zebra_redistribute_send. */
 487 extern void zclient_redistribute(int command, struct zclient *, afi_t, int type,
 488                                  unsigned short instance, vrf_id_t vrf_id);
 489
 490 /* If state has changed, update state and send the command to zebra. */
 491 extern void zclient_redistribute_default(int command, struct zclient *,
 492                                          vrf_id_t vrf_id);
 493
 494 /* Send the message in zclient->obuf to the zebra daemon (or enqueue it).
 495    Returns 0 for success or -1 on an I/O error. */
 496 extern int zclient_send_message(struct zclient *);
 497
 498 /* create header for command, length to be filled in by user later */
 499 extern void zclient_create_header(struct stream *, uint16_t, vrf_id_t);
 500 /*
 501  * Read sizeof(struct zmsghdr) bytes from the provided socket and parse the
 502  * received data into the specified fields. If this is successful, read the
 503  * rest of the packet into the provided stream.
 504  *
 505  * s
 506  *    The stream to read into
 507  *
 508  * sock
 509  *    The socket to read from
 510  *
 511  * size
 512  *    Parsed message size will be placed in the pointed-at integer
 513  *
 514  * marker
 515  *    Parsed marker will be placed in the pointed-at byte
 516  *
 517  * version
 518  *    Parsed version will be placed in the pointed-at byte
 519  *
 520  * vrf_id
 521  *    Parsed VRF ID will be placed in the pointed-at vrf_id_t
 522  *
 523  * cmd
 524  *    Parsed command number will be placed in the pointed-at integer
 525  *
 526  * Returns:
 527  *    -1 if:
 528  *    - insufficient data for header was read
 529  *    - a version mismatch was detected
 530  *    - a marker mismatch was detected
 531  *    - header size field specified more data than could be read
 532  */
 533 extern int zclient_read_header(struct stream *s, int sock, uint16_t *size,
 534                                uint8_t *marker, uint8_t *version,
 535                                vrf_id_t *vrf_id, uint16_t *cmd);
 536 /*
 537  * Parse header from ZAPI message stream into struct zmsghdr.
 538  * This function assumes the stream getp points at the first byte of the header.
 539  * If the function is successful then the stream getp will point to the byte
 540  * immediately after the last byte of the header.
 541  *
 542  * zmsg
 543  *    The stream containing the header
 544  *
 545  * hdr
 546  *    The header struct to parse into.
 547  *
 548  * Returns:
 549  *    true if parsing succeeded, false otherwise
 550  */
 551 extern bool zapi_parse_header(struct stream *zmsg, struct zmsghdr *hdr);
 552
 553 extern void zclient_interface_set_master(struct zclient *client,
 554                                          struct interface *master,
 555                                          struct interface *slave);
 556 extern struct interface *zebra_interface_add_read(struct stream *, vrf_id_t);
 557 extern struct interface *zebra_interface_state_read(struct stream *s, vrf_id_t);
 558 extern struct connected *zebra_interface_address_read(int, struct stream *,
 559                                                       vrf_id_t);
 560 extern struct nbr_connected *
 561 zebra_interface_nbr_address_read(int, struct stream *, vrf_id_t);
 562 extern struct interface *zebra_interface_vrf_update_read(struct stream *s,
 563                                                          vrf_id_t vrf_id,
 564                                                          vrf_id_t *new_vrf_id);
 565 extern void zebra_interface_if_set_value(struct stream *, struct interface *);
 566 extern void zebra_router_id_update_read(struct stream *s, struct prefix *rid);
 567
 568 extern struct interface *zebra_interface_link_params_read(struct stream *);
 569 extern size_t zebra_interface_link_params_write(struct stream *,
 570                                                 struct interface *);
 571 extern int zclient_send_get_label_chunk(
 572         struct zclient  *zclient,
 573         uint8_t         keep,
 574         uint32_t        chunk_size);
 575
 576 extern int lm_label_manager_connect(struct zclient *zclient, int async);
 577 extern int lm_get_label_chunk(struct zclient *zclient, uint8_t keep,
 578                               uint32_t chunk_size, uint32_t *start,
 579                               uint32_t *end);
 580 extern int lm_release_label_chunk(struct zclient *zclient, uint32_t start,
 581                                   uint32_t end);
 582 extern int tm_table_manager_connect(struct zclient *zclient);
 583 extern int tm_get_table_chunk(struct zclient *zclient, uint32_t chunk_size,
 584                               uint32_t *start, uint32_t *end);
 585 extern int tm_release_table_chunk(struct zclient *zclient, uint32_t start,
 586                                   uint32_t end);
 587
 588 extern int zebra_send_pw(struct zclient *zclient, int command,
 589                          struct zapi_pw *pw);
 590 extern void zebra_read_pw_status_update(int command, struct zclient *zclient,
 591                                         zebra_size_t length, vrf_id_t vrf_id,
 592                                         struct zapi_pw_status *pw);
 593
 594 extern int zclient_route_send(uint8_t, struct zclient *, struct zapi_route *);
 595 extern int zclient_send_rnh(struct zclient *zclient, int command,
 596                             struct prefix *p, bool exact_match,
 597                             vrf_id_t vrf_id);
 598 extern int zapi_route_encode(uint8_t, struct stream *, struct zapi_route *);
 599 extern int zapi_route_decode(struct stream *, struct zapi_route *);
 600 bool zapi_route_notify_decode(struct stream *s, struct prefix *p,
 601                               uint32_t *tableid,
 602                               enum zapi_route_notify_owner *note);
 603 bool zapi_rule_notify_decode(struct stream *s, uint32_t *seqno,
 604                              uint32_t *priority, uint32_t *unique,
 605                              ifindex_t *ifindex,
 606                              enum zapi_rule_notify_owner *note);
 607 bool zapi_ipset_notify_decode(struct stream *s,
 608                               uint32_t *unique,
 609                              enum zapi_ipset_notify_owner *note);
 610
 611 #define ZEBRA_IPSET_NAME_SIZE   32
 612
 613 bool zapi_ipset_entry_notify_decode(struct stream *s,
 614             uint32_t *unique,
 615             char *ipset_name,
 616             enum zapi_ipset_entry_notify_owner *note);
 617 bool zapi_iptable_notify_decode(struct stream *s,
 618                 uint32_t *unique,
 619                 enum zapi_iptable_notify_owner *note);
 620
 621 extern struct nexthop *nexthop_from_zapi_nexthop(struct zapi_nexthop *znh);
 622 extern bool zapi_nexthop_update_decode(struct stream *s,
 623                                        struct zapi_route *nhr);
 624
 625 static inline void zapi_route_set_blackhole(struct zapi_route *api,
 626                                             enum blackhole_type bh_type)
 627 {
 628         api->nexthop_num = 1;
 629         api->nexthops[0].type = NEXTHOP_TYPE_BLACKHOLE;
 630         api->nexthops[0].vrf_id = VRF_DEFAULT;
 631         api->nexthops[0].bh_type = bh_type;
 632         SET_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP);
 633 };
 634
 635
 636 #endif /* _ZEBRA_ZCLIENT_H */